Cooling device for firearms.



A. BERTHIER.

oooLING nBvIoB ron mums.

APPLIOATION FILED MAB. 24, 1911.

Patented Feb. 13, 1912.

means of rings or ANDR mamma, or rams, FRANCE.

cooLINc nevica Fon marsans.

Original application filed September 16, 1909, Serial No.

Specication of Letters Patent.

Patented Feb. 13, 1912. 518,013. Divided'and this application led Iaroh24, 1911!. Serial No. 616,649.

To all 'whom 'it may concern:

Be it known that I, ANDR BERTHIER, general, a citizen of the Republic ofFrance, residing at Paris, France, 90 Rue de Grenelle, have inventedcertain new and useful Improvements in Cooling Devices for Firearms,beingr a division from my United States application, Serial No. 518,013,as tiled on September 16, 1909, and of which the following is a full,clear, and exact description.

The cooling means usually consists of a' Water jacket surrounding thebarrel to which water is supplied through a hole situated in the rearpart of the casing and discharged through another hole in the muzzle endthereof.

The cooling device according to my invention comp-rises a casing formedin two parts which may either be'smooth or provided with transverseseams. The casing is also provided 4with additional tubes here inafterdescribed which are furnished with a flexible tube Awhich is carried tothe ground and adapted to carry away the steam generated in .the casiii4 The invention is illustrated in thg accompanying drawing, inv which"Figure l is an elevation of the firearm and Fig. 2 is a horizontalsection on the line A-A in Fig. l.

In the case illustrated the cooling, device is constituted by two Steeltubes l and 2. It may, however, consist of one tube only when the part 3is arranged at the end of the barrel. 'Ifhe steel tubes are eithersmooth or provided With transverse seams in order to permit of theincrease of length due to the heating. The tubes are fixed betweenconical cavities in the breech cas-ing by stuffing boxes and screws. Thepart 3 and the sight ring 4 likewise constitute a part of the coolingdevice. The cooling tubes are held in place by nuts 5, 6 with theinterposition of asbestos or other packing. The tube 14 isheld to thebarrel at the end which is turned to the breech case by a nut 5V whileat, the opposite end it is placed against the ring 3 and held in place*b la nut 5. The' tube 2 is placed at one en against the sight ring 4screwed 'ring and is held by,the'nut 6.

. placing the fixed or onto the barrel, at: the other end against theThe sight ring 1s screwed onto the barrel. This method of connectionpermits of taking the cooling device apart when desired for examining itor replacing its parts. On the left hand side of the cooling device twotubes 7 and 8 (Fig. 2) are arranged; they are united atfa place 1lwithin-reach of t e marksman or of the second server who is intrustedwith ortable water reservoir 1n communication with the flanged socket 11of`the cooling device. On the right hand side of the cooling tubes 1'and 2 two additional tubes 9 and 10 are provided; these are furnishedwith-a tiexible tube `12`which is carried to the ground and throughwhich the steam generated by the cooling of the barrel escapes. -lf onlyone cooling tube is used, then also only one tube for the introductionof the water and only one tube for carryinor away the generated steamwill be require The discharge tube may also open into one of the legs of the shooting support.

What I claim as my invention and desire to secure by Letters Patent is:

l. In a cooling device for firearms the combination of a jacketsurroundin the barrel and being but slightly larger 1n diameter than thebarrel and formed in two parts communicating with oneanother by tubes onthe exterior of the jacket, and a feed device supplying only so muchcooling water as will be vaporized, when it enters the cooling jacket,substantially .as described.

2. In a cooling device for. fire-arms the combination of a jacketsurroundin the barrel and being but slightly larger 1n diameter than thebarrel and formed in two parts communicating with one-another by tubeson the exterior of the jacket, one of the said tubes being furnishedwith means adapted to carry away the steam. generated in the jacket, enda feed device sup lylng only so much cooling water as will e va-'porized whenit enters the cooling igcket,

substantially as described.

3.' In a cooling device for lire-arms the combination of a jacketsurrounding the barrel and being but slightly larger in damporized whenit enters the cooling. acket,

eter than the barrel and formed in two parts substantaly as described.10 communicating with one another byv tubes In testmon whereof I :xfx mysignature on the exterior of the jacket, one of the said in presence 0'two Witnesses.

tubes being furnished with a exble tube A. IJGRTIIIEIL adapted to carryaway the steam generated Witnesses: in the jacket, `and a feed devicesupplying H. A.Jo1-1Nsox-=,

only so much cooling Water as will be va- A. IENnLEToN CRUGER.

